9142757999844 has 144 divisors (see below), whose sum is σ = 25804807257600. Its totient is φ = 2509071151104.

The previous prime is 9142757999827. The next prime is 9142757999849. The reversal of 9142757999844 is 4489997572419.

It is a super-2 number, since 2×9142757999844² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 9142757999844.

It is not an unprimeable number, because it can be changed into a prime (9142757999849) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1901997 + ... + 4680075.

It is an arithmetic number, because the mean of its divisors is an integer number (179200050400).

Almost surely, 2^{9142757999844} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9142757999844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12902403628800).

9142757999844 is an abundant number, since it is smaller than the sum of its proper divisors (16662049257756).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9142757999844 is a wasteful number, since it uses less digits than its factorization.

9142757999844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2778322 (or 2778313 counting only the distinct ones).

The product of its digits is 1646023680, while the sum is 78.

The spelling of 9142757999844 in words is "nine trillion, one hundred forty-two billion, seven hundred fifty-seven million, nine hundred ninety-nine thousand, eight hundred forty-four".